nannofossiln.

Brit.

/ˈnanə(ʊ)ˌfɒsl/, U.S.

/ˈnænəˌfɑs(ə)l/,

/ˈnænoʊˌfɑs(ə)l/

Forms: 1900s– nannofossil, 1900s– nanofossil.

Origin: Formed within English, by compounding. Etymons: English nannoplankton , nanoplankton n., fossil n.

Etymology: < nanno- (in nannoplankton, variant of nanoplankton n.) + fossil n. Compare French nanofossile (1968).

Geology.

A fossil of a minute planktonic organism, esp. a calcareous unicellular alga. Cf. earlier microfossil n. at micro- comb. form 1a(d).

ΚΠ

1962 Philos. Trans. (Royal Soc.) B. 245 273 Omitted from the list is a nannofossil which was illustrated under the name ‘unbestimmtes Skelettelement’;..this fossil is probably restricted to the uppermost Eocene.

1972 Sci. Amer. Dec. 33/2 The white ooze is a typical oceanic sediment, made up almost entirely of the skeletons of microfossils and nannofossils.

1981 J. McPhee Basin & Range 202 People who identify deep-ocean nannofossils.

1996 Sci. Amer. Oct. 13/2 At the scale of just tens of nanometers, minerals can grow into shapes that are virtually impossible to distinguish from nanofossils.

This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).

单词	nannofossil
释义	nannofossiln. Brit. /ˈnanə(ʊ)ˌfɒsl/, U.S. /ˈnænəˌfɑs(ə)l/, /ˈnænoʊˌfɑs(ə)l/ Forms: 1900s– nannofossil, 1900s– nanofossil. Origin: Formed within English, by compounding. Etymons: English nannoplankton , nanoplankton n., fossil n. Etymology: < nanno- (in nannoplankton, variant of nanoplankton n.) + fossil n. Compare French nanofossile (1968). Geology. A fossil of a minute planktonic organism, esp. a calcareous unicellular alga. Cf. earlier microfossil n. at micro- comb. form 1a(d). ΚΠ 1962 Philos. Trans. (Royal Soc.) B. 245 273 Omitted from the list is a nannofossil which was illustrated under the name ‘unbestimmtes Skelettelement’;..this fossil is probably restricted to the uppermost Eocene. 1972 Sci. Amer. Dec. 33/2 The white ooze is a typical oceanic sediment, made up almost entirely of the skeletons of microfossils and nannofossils. 1981 J. McPhee Basin & Range 202 People who identify deep-ocean nannofossils. 1996 Sci. Amer. Oct. 13/2 At the scale of just tens of nanometers, minerals can grow into shapes that are virtually impossible to distinguish from nanofossils. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022). < n.1962
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